For open-ended read/write - just send CMD22 before issuing the command.
Reviewed-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
Signed-off-by: Avri Altman <avri.altman@xxxxxxx>
---
drivers/mmc/core/block.c | 5 +++++
drivers/mmc/core/core.c | 3 +++
include/linux/mmc/core.h | 5 +++++
3 files changed, 13 insertions(+)
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 05a7745c2a68..ba2ed413be5c 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -1759,6 +1759,11 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
brq->sbc.flags = MMC_RSP_R1 | MMC_CMD_AC;
brq->mrq.sbc = &brq->sbc;
}
+
+ if (mmc_card_ult_capacity(card)) {
+ brq->cmd.ext_addr = blk_rq_pos(req) >> 32;
+ brq->cmd.has_ext_addr = true;
+ }
}
#define MMC_MAX_RETRIES 5
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index d6c819dd68ed..a0b2999684b3 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -336,6 +336,9 @@ int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
{
int err;
+ if (mrq->cmd && mrq->cmd->has_ext_addr)
+ mmc_send_ext_addr(host, mrq->cmd->ext_addr);
+
init_completion(&mrq->cmd_completion);
mmc_retune_hold(host);
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index f0ac2e469b32..c86df8443a88 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -96,6 +96,11 @@ struct mmc_command {
unsigned int busy_timeout; /* busy detect timeout in ms */
struct mmc_data *data; /* data segment associated with cmd */
struct mmc_request *mrq; /* associated request */
+
+ /* for SDUC */
+ bool has_ext_addr;
+ u8 ext_addr;
+ u16 reserved;
};
struct mmc_data {
--
2.25.1
